Home / 115,932.40-173,668.20-66,626.80

Finding the Fourth Proportional to 115,932.40, 173,668.20 and 66,626.80

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Solution

The fourth proportional to 115,932.40, 173,668.20 and 66,626.80 is: 99,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,932.40 : 173,668.20 = 66,626.80 : x
  2. Step 2: Convert to fraction form
    115,932.40/173,668.20 = 66,626.80/x
  3. Step 3: Cross multiply
    115,932.40x = 173,668.20 × 66,626.80
  4. Step 4: Simplify right side
    115,932.40x = 11,570,956,427.76
  5. Step 5: Solve for x
    x = 11,570,956,427.76/115,932.40
  6. Step 6: Final answer
    x = 99,807.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.